docs: Xen ARM DT bindings

Add a doc to describe the Xen ARM device tree bindings


Changes in v5:

- add a comment about the size of the grant table memory region;
- add a comment about the required presence of a GIC node;
- specify that the described properties are part of a top-level
"hypervisor" node;
- specify #address-cells and #size-cells for the example.


Changes in v4:

- "xen,xen" should be last as it is less specific;
- update reg property using 2 address-cells and 2 size-cells.


Signed-off-by: Stefano Stabellini <[email protected]>
Acked-by: Rob Herring <[email protected]>
CC: [email protected]
CC: David Vrabel <[email protected]>
CC: Rob Herring <[email protected]>
CC: Dave Martin <[email protected]>

0 files changed, 0 insertions, 0 deletions